Database Resource Manager

Question

Hello,
We're on Oracle 10.2.0.3.
I want the Resource Manager to map a specific machine in de 'LOW_GROUP'.
Therefore I've used the value of 'machine' from the following query
select sid, serial#, username, machine, resource_consumer_group
from gv$session
order by sid;
BEGIN
dbms_resource_manager.clear_pending_area();
dbms_resource_manager.create_pending_area();
dbms_resource_manager.set_consumer_group_mapping(
dbms_resource_manager.client_machine,
'CWZ\04-800-1330',
'LOW_GROUP'
dbms_resource_manager.submit_pending_area();
END;
When I connect to the database, the connection is in consumer_group 'OTHER_GROUPS'.
What can be the reason for that ?
Thanks for your help,
Sjang

Answer 1

Hello
I've found the same problem when setting up the USER mapping. It doesn't work! There is a bug with the PROGRAM mapping in that dbms_resource_manager uppercases the input program name, so if you have mixed case executable names, it won't work, but it seems to extend to the other attributes too.
To get round the problem, I've put together a logon trigger and several mapping tables and then do the switch manually i.e.
    BEGIN
        SELECT
            spm.consumer_group
        INTO
            ls_ConsumerGroup
        FROM
            resource_man.session_user_mapping spm
        WHERE
            spm.user_name = USER;
        dbms_resource_manager.switch_consumer_group_for_user
        (   USER,
            ls_ConsumerGroup
    EXCEPTION
        WHEN NO_DATA_FOUND THEN
            NULL;
    END;
    BEGIN
        SELECT
            spm.consumer_group,
            vs.sid,
            vs.serial#
        INTO
            ls_ConsumerGroup,
            ln_SessionId,
            ln_Serial
        FROM
            session_program_mapping spm,
            v$session vs
        WHERE
            vs.program = spm.program_name
        AND
            vs.audsid = TO_NUMBER(SYS_CONTEXT('USERENV','SESSIONID'));
        dbms_resource_manager.switch_consumer_group_for_sess
        (   ln_SessionId,
            ln_Serial,
            ls_ConsumerGroup
    EXCEPTION
        WHEN NO_DATA_FOUND THEN
            NULL;
    END;Not sure why the auto mapping bit doesn't work but the above code does work.
HTH
David